Home / 120,739.61-181,109.41-41,853.84

Finding the Fourth Proportional to 120,739.61, 181,109.41 and 41,853.84

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Solution

The fourth proportional to 120,739.61, 181,109.41 and 41,853.84 is: 62,780.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,739.61 : 181,109.41 = 41,853.84 : x
  2. Step 2: Convert to fraction form
    120,739.61/181,109.41 = 41,853.84/x
  3. Step 3: Cross multiply
    120,739.61x = 181,109.41 × 41,853.84
  4. Step 4: Simplify right side
    120,739.61x = 7,580,124,721.41
  5. Step 5: Solve for x
    x = 7,580,124,721.41/120,739.61
  6. Step 6: Final answer
    x = 62,780.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.